ShirtlessKirk

/**
 * @preserve CORS (Cross-Origin Resource Sharing) library (https://en.wikipedia.org/wiki/Cross-origin_resource_sharing)
 *
 * @author ShirtlessKirk copyright 2014
 * @license WTFPL (http://www.wtfpl.net/txt/copying)
 */
/*jslint unparam: true */
/*global define: false, module: false, require: false */
(function (global, definition) { // non-exporting module magic dance
    'use strict';

ShirtlessKirk

/**
 * performance-timing.js: Polyfill for performance.timing object
 * For greatest accuracy, this needs to be run as soon as possible in the page, preferably inline.
 * The values returned are necessarily not absolutely accurate, but are close enough for general purposes.
 * @author ShirtlessKirk. Copyright (c) 2014.
 * @license WTFPL (http://www.wtfpl.net/txt/copying)
 */
(function (window) {
    'use strict';

ShirtlessKirk

/**
 * Luhn algorithm in JavaScript: validate credit card number supplied as string of numbers
 * @author ShirtlessKirk. Copyright (c) 2012.
 * @license WTFPL (http://www.wtfpl.net/txt/copying)
 */
var luhnChk = (function (arr) {
    return function (ccNum) {
        var 
            len = ccNum.length,
            bit = 1,